Spring tractor wheel



y 1930. w. E. LAGERF-ELDT 1,759,860

SPRING TRACTOR WHEEL Filed May 18, 1929 5 Sheets-Sheet l Invenfo 'wELa er ezdi I Attorney May 27, 1930.

0 6. 9 5 1 m m L m w R m E w G A m. m l 12R Filed May 18, 1929 s Sheets-Sheet 2 Inve'n tor WE. Layerfeldi v Attorney y 1930. w. ELAGERFELDT 1,759,860

' SPRING TRACTOR WHEEL Filed May 18, 1929 5 Sheets-Sheet 3 Inventor YAZE .Laqerfeldf Attorney In the drawings a Y Patented May 27,1930

: WILFRED EMANUEL LAGERFELDT, oral Ron: xronnrnmp vrrofirenn s srRING-TRAoTbR Si w Applicationfled May '18,

The present, invention ,appertains, to new and useful improvement in yehicle wheels and more particularly to a-spring wheel especially '7 adapted for use on tractors; i t The principal object of this invention'is to provide a spring'tractor Wheel which has exceptional traction increasedqu'ali'ties. I

Another object of the invention is to'provide a tractor wheel'which, in operatiomwillf not tend to cut into the earth, thus eliminating tractor wheelsnowin use. I i

'Another important objectfis 'in the pro- .yisionofa tractor wheel which will'easily ride outof'soft ground. withoutfspinning or 'digging'thereinto. f 1 "Afterconsideringthe following specification and'claim, other very important objects and'advantages of the' invention will readily the usual gauging anddirt diggingantics of x Q at v I r i i Y 4- 14 jammed against theopposite sides 1 thereof for firmly maintaining the same in a 2Q. become apparent.

i-Figure 1' represents a sideelevation of the Wheel inits entirety. i f v Figure 2 represents an edge elevation thereof. l

1 t Figure 3 represents a fragmentary vertical sectional, View through the improved wheel. a

I V Figure 4 represents afragmentary'vertical sectional View, "taken on a plane at right angles to thesectional View in Figure? Figure 5 represents a fragmentary Vertical sectional View, taken'substantially on the line 55 of Figure'3, I I Figure 6 represents a cross sectional View of F the spring means, taken substantially on the lined-'GofFigure l. I 1

Figure 7. represents a crosssectionalyiew I 1 taken substantially onthe line77 ofFig. 4'.

Referring to the drawings wherein like numerals designate like parts, it will beseen that the; present invention embodies a hub struc-. ture 5 fromwhich radiate a plurality ofguide members '6, These guide members 6 radiate from the periphery 7, equal spaced inter- Vals. The guide members 6 are also interconnected by the annulus 19, conne ting the intermediaciesof the guide members ,6. r v a I The wheel construction includes a plurality of spoke rods 10, one foroe'ach ofthe guides 6,

numeral 18 and shown in its entirety in Figas wellas one for each of the guides 11 which A shorter in-length than "the guides The guides :6 'and ll receive the innerends' of the" spokes 10, while the intermedia'cis of "the spokes are adapted'as at 12 for receiyinglthef plates '13,*as-wellas.the nuts 14.-

1 A cylindrical cover-l ais'pr'oyided foreaeh sp ik lefa'nd'is "closed; at fOIlGE'hIild' and provided with'anopen'ingito receiye'tlie'spoke 10. This closed end of the coveris adapted to engage the plate 13 at one side and to havethe'nuts setposition on the spoke. The open endof the cover receives the complementary: guide, in substantially the manner shownin' Figure 3. 'The'pl'ate 16 is proVided-oneach spoke n i through which the sameis slidable and this plateis adapted to abut the free end of the p guide. A spring 17 of the compressible type," t impinges at oneend against the plate 16 and at its opposite endagainst the plate 13.

' A tread annulus generally'referred to by ure 1, consists offa plurality of rectangular shaped plates 19 hingedly connected at their ends as at 20. 1 Each of the plates is provided with a pair of longitudinally spaced and transversely'extending cleats 21-21. 1 I V A member 22 of U-sh'aped cross section is secured to the inner side of each section 19 and between the flanges of this member is pivotally connected. the outer end of a spoke 10 as at 23. a V g It will thus be seen that thepresent invention presents a tractor wheel which is resilientand which, in operation, will perform 7 7 its duty with more elficiency than is expected ofywheels of this character now in use. p

' Furthermore, while the foregoing descri py tion hasbeen inspecific terms, it is to befllllr.

' derstood that Various changes inthe shape,

size, and materials may be resorted to, without departing from the spirit and scope of the inventionzas claimed hereinafter. I

What is claimed as new is: t A spring wheel of the character describedcomprising a hub, elongated tubular guides radiating from the hub, a traction rim encir cling the hub in spaced relation thereto and V 

